block_size_median added

https://github.com/moneroexamples/onion-monero-blockchain-explorer/issues/114#issuecomment-384878024

src/MempoolStatus.cpp

@@ -263,10 +263,24 @@ MempoolStatus::read_network_info()
                                             rpc_network_info.stagenet ? cryptonote::network_type::STAGENET : cryptonote::network_type::MAINNET;
     local_copy.cumulative_difficulty      = rpc_network_info.cumulative_difficulty;
     local_copy.block_size_limit           = rpc_network_info.block_size_limit;
+    local_copy.block_size_median          = rpc_network_info.block_size_median;
     local_copy.start_time                 = rpc_network_info.start_time;
 
 
-    epee::string_tools::hex_to_pod(rpc_network_info.top_block_hash, local_copy.top_block_hash);
+    strncpy(local_copy.block_size_limit_str, fmt::format("{:0.2f}",
+                                             static_cast<double>(
+                                             local_copy.block_size_limit ) / 2.0 / 1024.0).c_str(),
+                                             sizeof(local_copy.block_size_limit_str));
+
+
+    strncpy(local_copy.block_size_median_str, fmt::format("{:0.2f}",
+                                              static_cast<double>(
+                                              local_copy.block_size_median) / 1024.0).c_str(),
+                                              sizeof(local_copy.block_size_median_str));
+
+    epee::string_tools::hex_to_pod(rpc_network_info.top_block_hash,
+                                   local_copy.top_block_hash);
+
     local_copy.fee_per_kb                 = fee_estimated;
     local_copy.info_timestamp             = static_cast<uint64_t>(std::time(nullptr));
 

src/MempoolStatus.h

@@ -71,6 +71,9 @@ struct MempoolStatus
         crypto::hash top_block_hash;
         uint64_t cumulative_difficulty  {0};
         uint64_t block_size_limit  {0};
+        uint64_t block_size_median  {0};
+        char block_size_limit_str[10] {"0.0"};   // needs to be trivially copyable
+        char block_size_median_str[10] {"0.0"} ;  // std::string is not trivially copyable
         uint64_t start_time  {0};
         uint64_t current_hf_version {0};
 

src/page.h

@@ -790,9 +790,7 @@ public:
         } // while (i <= end_height)
 
         // calculate median size of the blocks shown
-        double blk_size_median = xmreg::calc_median(blk_sizes.begin(), blk_sizes.end());
+        //double blk_size_median = xmreg::calc_median(blk_sizes.begin(), blk_sizes.end());
-
-        context["blk_size_median"] = fmt::format("{:0.2f}", blk_size_median);
 
         // save computational times for disply in the frontend
 
@@ -835,10 +833,6 @@ public:
             current_network_info.current = true;
         }
 
-        string block_size_limit = fmt::format("{:0.2f}",
-                          static_cast<double>(
-                                  current_network_info.block_size_limit) / 2.0 / 1024.0);
-
         context["network_info"] = mstch::map {
                 {"difficulty"        , current_network_info.difficulty},
                 {"hash_rate"         , hash_rate},
@@ -846,7 +840,8 @@ public:
                 {"alt_blocks_no"     , current_network_info.alt_blocks_count},
                 {"have_alt_block"    , (current_network_info.alt_blocks_count > 0)},
                 {"tx_pool_size"      , current_network_info.tx_pool_size},
-                {"block_size_limit"  , block_size_limit},
+                {"block_size_limit"  , string {current_network_info.block_size_limit_str}},
+                {"block_size_median" , string {current_network_info.block_size_median_str}},
                 {"is_current_info"   , current_network_info.current},
                 {"is_pool_size_zero" , (current_network_info.tx_pool_size == 0)},
                 {"current_hf_version", current_network_info.current_hf_version},
@@ -854,6 +849,9 @@ public:
                 {"age_format"        , network_info_age.second},
         };
 
+        // median size of 100 blocks
+        context["blk_size_median"] = string {current_network_info.block_size_median_str};
+
         string mempool_html {"Cant get mempool_pool"};
 
         // get mempool data for the front page, if ready. If not, then just skip.
@@ -6253,6 +6251,7 @@ private:
            {"top_block_hash"            , pod_to_hex(local_copy_network_info.top_block_hash)},
            {"cumulative_difficulty"     , local_copy_network_info.cumulative_difficulty},
            {"block_size_limit"          , local_copy_network_info.block_size_limit},
+           {"block_size_median"         , local_copy_network_info.block_size_median},
            {"start_time"                , local_copy_network_info.start_time},
            {"fee_per_kb"                , local_copy_network_info.fee_per_kb},
            {"current_hf_version"        , local_copy_network_info.current_hf_version}

src/templates/index2.html

@@ -71,7 +71,7 @@
       <h2 style="margin-bottom: 0px">Transactions in older blocks<!--(height: {{height}})--></h2>
     {{/is_page_zero}}
 
-    <h4 style="font-size: 14px; margin-top: 0px">(Median size of these blocks: {{blk_size_median}} kB)</h4>
+    <h4 style="font-size: 14px; margin-top: 0px">(Median size of 100 blocks: {{blk_size_median}} kB)</h4>
 
     <div class="center">